D. Stempel AG was a German typographic foundry founded by David Stempel (1869–1927), in Frankfurt am Main, Germany. Many important font designers worked for the Stempel foundry, including Hans Bohn, Warren Chappell, F. H. Ehmcke, Friedrich Heinrichsen, Hanns Th. Hoyer, F. W. Kleukens, Erich Meyer, Hans Möhring, Hiero Rhode, Wilhelm Schwerdtner, Herbert Thannhaeuser, Martin Wilke, Rudolf Wolf, Victor Hammer, Hermann Zapf, and Gudrun Zapf von Hesse.